﻿//////////////////////////////////////////////////////////////////////////////
//
// Copyright © 1998-2024 Glodon Company Limited.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the “Software”),
// to deal in the Software without restriction, including without limitation
// the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
// sell copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
// THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
//////////////////////////////////////////////////////////////////////////////
#include "ModuleUtils.h"
#include "FilePath.h"
#include "GbmpFileSystem.h"
#include "EnableCompileWarning_The_LAST_IncludeInCpp.h"

using namespace Sample;
using namespace gcmp;

HMODULE ModuleUtils::LoadDwgModule()
{
    std::wstring strName = L"GcmpDwgDxf.dll";
    HMODULE hModuleHandle = ::GetModuleHandle(strName.c_str());
    if (hModuleHandle != NULL)
    {
        return hModuleHandle;
    }

    AddPath(L"Teigha");

    std::wstring dwgDllPath = FileSystem::GetExeDirPath();
    dwgDllPath += strName;
    return ::LoadLibrary(dwgDllPath.c_str());
}

void ModuleUtils::AddPath(const std::wstring& path)
{
    //设置teigha路径
    std::wstring sPath = FilePath::Combine(FileSystem::GetExeDirPath(), path);

    std::wstring res;

    DWORD dwRet = ::GetEnvironmentVariableW(L"Path", nullptr, 0);
    if (dwRet != 0)
    {
        LPTSTR pszOldVal = (LPTSTR)malloc(dwRet * sizeof(TCHAR));
        ::GetEnvironmentVariableW(L"Path", pszOldVal, dwRet);
        res = pszOldVal;
        free(pszOldVal);
    }

    res += L";" + sPath;
    ::SetEnvironmentVariableW(L"Path", res.c_str());
}
